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84 lines
3.2 KiB
84 lines
3.2 KiB
#ifndef __CPALDC__
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#define __CPALDC__
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#ifdef DESCRIPTION
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This is similar to the CDC object. When constructed, it automatically
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creates a memory dc (unless one is passed in), and if a palette is
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specified, it selects that palette into the DC. When destructed, it
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first checks to see if a palette has been selected into the DC, and if
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so, selects the previous palette into the DC before destroying it.
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You may also use the SelectBitmap function to select in a bitmap which
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will be automatically deselected when the dc is destructed.
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DeleteBmp can be used in case of an error to deselect the bitmap
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and delete it.
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#endif // DESCRIPTION
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const int SCREEN_DC = 0;
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const int SCREEN_IC = 1;
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class CPalDC
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{
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public:
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CPalDC(HBITMAP hbmp = NULL, HPALETTE hpal = NULL);
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CPalDC(HWND hwnd); // creates a window DC
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CPalDC(int type);
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~CPalDC(void);
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void STDCALL SelectPal(HPALETTE hpal); // NULL removes previous
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void STDCALL SelectBitmap(HBITMAP hbmp); // NULL removes previous
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void STDCALL SelectBrush(HBRUSH hbr);
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// Using COLORREF creates a brush that is automatically selected into
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// the DC, and automatically deleted when the CPalDC class is destroyed.
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void STDCALL SelectBrush(COLORREF clr);
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void STDCALL DeleteBrush(void); // delete COLORREF brush
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void STDCALL DeleteBmp(void); // delete bitmap last selected into dc
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// BitBlt assumes bitmap has been selected via creation or SelectBitmap()
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BOOL STDCALL BitBlt(CPalDC* pSrcDC, int xSrc = 0, int ySrc = 0, DWORD dwRop = SRCCOPY);
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BOOL BitBlt(int x, int y, int cx, int cy, HDC hdcSrc, int xSrc = 0, int ySrc = 0, DWORD dwRop = SRCCOPY)
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{ return ::BitBlt(hdc, x, y, cx, cy, hdcSrc, xSrc, ySrc, dwRop); };
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BOOL BitBlt(int x, int y, int cx, int cy, CPalDC* pSrcDC, int xSrc = 0, int ySrc = 0, DWORD dwRop = SRCCOPY)
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{ return ::BitBlt(hdc, x, y, cx, cy, pSrcDC->hdc, xSrc, ySrc, dwRop); };
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BOOL StretchBlt(int x, int y, int cx, int cy, HDC hdcSrc, int xSrc, int ySrc, int cSrcX, int cSrcY, DWORD dwRop)
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{ return ::StretchBlt(hdc, x, y, cx, cy, hdcSrc, xSrc, ySrc, cSrcX, cSrcY, dwRop); };
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BOOL StretchBlt(int x, int y, int cx, int cy, CPalDC* pSrcDC, int xSrc, int ySrc, int cSrcX, int cSrcY, DWORD dwRop)
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{ return ::StretchBlt(hdc, x, y, cx, cy, pSrcDC->hdc, xSrc, ySrc, cSrcX, cSrcY, dwRop); };
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COLORREF GetPixel(POINT pt) { return ::GetPixel(hdc, pt.x, pt.y); };
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int GetDIBits(UINT start, UINT clines, LPVOID lpvBits,
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LPBITMAPINFO lpbmi, UINT fuColorUse = DIB_RGB_COLORS)
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{ return ::GetDIBits(hdc, hbmpOrg, start, clines, lpvBits, lpbmi, fuColorUse); };
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HBITMAP STDCALL CreateCompatibleBitmap(void);
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HBITMAP STDCALL CreateCompatibleBitmap(int width, int height)
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{ return ::CreateCompatibleBitmap(hdc, width, height); };
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int GetDeviceWidth(void) { return GetDeviceCaps(hdc, HORZRES); };
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int GetDeviceHeight(void) { return GetDeviceCaps(hdc, VERTRES); };
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int GetXAsepect(void);
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int GetYAsepect(void);
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int GetDeviceColors(void) { return GetDeviceCaps(hdc, NUMCOLORS); };
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void STDCALL FillRect(RECT* prc, COLORREF clr);
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HDC hdc;
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private:
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HPALETTE hpal;
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HBITMAP hbmp;
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HBRUSH hbr;
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HBRUSH hbrCreated;
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HBITMAP hbmpOrg;
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HWND hwndDC; // window handle if window DC created
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};
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#endif // __CPALDC__
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